>1m90S (S:) observed residues (from ATOM records)
gisysveadpdttakamlrerqmsfkhskaiareikgktageavdyleaviegdqpvpfk
qhnsgvghkskvdgwdagrypekaskafldllenavgnadhqgfdgeamtikhvaahkvg
eqqgrkpramgrasawnspqvdvelileep